2018年11月12日月曜日

AboutDialog の追加

AboutDialog の追加



    public class AboutDialog extends AlertDialog {
        private Context context;

        public AboutDialog(Context context) {
            super(context);
            this.context = context;
        }

        @Override
        protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            LinearLayout li = (LinearLayout) LayoutInflater.from(context).inflate(R.layout.about_layout, null);
            TextView textView = li.findViewById(R.id.textView3);
            textView.setText(Html.fromHtml("<u>" + getString(R.string.GooglePlayStore) + "<u>"));
            Pattern pattern = Pattern.compile("");
            String url = getString(R.string.PlayURL);
            Linkify.addLinks(textView, pattern, url, null, null);
            setContentView(li);
        }
    }



<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:paddingLeft="20dp"
    android:paddingTop="10dp"
    android:paddingRight="20dp"
    android:paddingBottom="30dp">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_weight="1"
        app:srcCompat="@mipmap/ic_launcher_foreground" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="20dp"
        android:layout_weight="1"
        android:text="@string/app_name"
        android:textSize="30dp" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="20dp"
        android:layout_weight="1"
        android:text="@string/kankanla"
        android:textSize="20dp" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginTop="20dp"
        android:layout_weight="1"
        android:text="@string/GooglePlayStore"
        android:textSize="20dp" />
</LinearLayout>

2018年11月10日土曜日

Ads SDK

    ******************************************************************************
    * The Google Mobile Ads SDK was initialized incorrectly. AdMob publishers    *
    * should follow the instructions here: https://goo.gl/fQ2neu to add a valid  *
    * App ID inside the AndroidManifest. Google Ad Manager publishers should     *
    * follow instructions here: https://goo.gl/h17b6x.                           *
    ******************************************************************************


2018年10月28日日曜日

3.5 毫米耳机:配件规范

3.5 毫米耳机:配件规范



https://source.android.com/devices/accessories/headset/plug-headset-spec

直接启动

直接启动

<action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" />

https://developer.android.com/training/articles/direct-boot?hl=zh-cn

2018年10月23日火曜日

アルファベットArrayList作成

import java.util.*;

class chart {
public static void main(String[] args) {
ArrayList<String> keyList = new ArrayList<>();
for (int i = 0x41; i < 0x5B; i++) {
keyList.add(String.valueOf((char)i));
}

for (int i = 0x30; i < 0x3A; i++) {
keyList.add(String.valueOf((char)i));
}

System.out.println(keyList);


String x = keyList.toString();
char[] temp = x.toCharArray();
temp = x.toCharArray();
for (char cc : temp) {
System.out.println(cc);
}

StringBuffer temp2 = new StringBuffer();

for(String xx :keyList){
temp2.append(xx);
}

System.out.println(temp2);
}
}

2018年9月12日水曜日

【Android】快速切换到主线程更新UI的几种方法

【Android】快速切换到主线程更新UI的几种方法
方法一: view.post(Runnable action)
textView.post(new Runnable() {
        @Override
        public void run() {
            textView.setText("更新textView");
            //还可以更新其他的控件
            imageView.setBackgroundResource(R.drawable.update);
        }
    });

方法二: activity.runOnUiThread(Runnable action)
public void updateUI(final Context context) {
        ((MainActivity) context).runOnUiThread(new Runnable() {
            @Override
            public void run() {
                //此时已在主线程中,可以更新UI了
            }
        });
    }

方法三: Handler机制
...

2018年7月19日木曜日

java_Semaphore

java_Semaphore

import java.util.concurrent.Semaphore;
import java.lang.System;

class  M180717_Semaphore {
public static void main(String[] args) {
Semaphore semaphore = new Semaphore(8);
long s = System.currentTimeMillis();

A a = new A(semaphore);
a.start();

B b = new B(semaphore);
b.start();

B b2 = new B(semaphore);
b2.start();
}
}

class A extends Thread {
private Semaphore semaphore;
public A(Semaphore semaphore) {
this.semaphore = semaphore;
}

@Override
public void run() {
try {
semaphore.acquire();
System.out.println(Thread.currentThread().getName() + "-------");
for (int i = 0 ; i < 99 ; i++) {
System.out.print("a");
}
semaphore.release();
} catch (Exception e) {
System.out.println(semaphore.getQueueLength());
}
}
}

class B extends Thread {
private Semaphore semaphore;

public B(Semaphore semaphore) {
this.semaphore = semaphore;
}

@Override
public void run() {
try {
// System.out.println(semaphore.getQueueLength());
semaphore.acquire();
System.out.println(Thread.currentThread().getName() + "-------");
for (int i = 0 ; i < 99 ; i++) {
System.out.print("b");
}
semaphore.release();
} catch (Exception e) {
System.out.println(semaphore.getQueueLength());
}
}
}

class C extends Thread {
@Override
public void run() {
System.out.println(Thread.currentThread().getName() + "-------");
for (int i = 0 ; i < 99 ; i++) {
System.out.print("c");
}
}
}

class X implements Runnable {
@Override
public void run() {
System.out.println("xxxxx");
}
}


Android Handler Thread HandlerThread

Android Handler Thread HandlerThread

Handler.Callback callback = new Handler.Callback()


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    textView = findViewById(R.id.textView);
    button = findViewById(R.id.button);

    CC();
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            handler.sendEmptyMessage(99);
        }
    });
}

protected void CC() {
    HandlerThread handlerThread = new HandlerThread("test");
    handlerThread.start();

    Handler.Callback callback = new Handler.Callback() {
        @Override
        public boolean handleMessage(Message message) {
            System.out.println();
            System.out.println(Thread.currentThread().getName());
            System.out.println("0000000000000000000000000000000000000");
            return false;
        }
    };
    handler = new Handler(handlerThread.getLooper(), callback);
}

Android Handler Thread HandlerThread

Android Handler Thread HandlerThread

從主線程發送消息到子線程。
子線程必須創建Looper,
handlerThread.getLooper(),
Looper.prepare(),Looper.loop()

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    button = findViewById(R.id.button2);

    Tthread tthread = new Tthread();
    tthread.start();
    T3();
    T4();

    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            hh.sendEmptyMessage(12);
            handler.sendEmptyMessage(12);
            handlerT4.sendEmptyMessage(12);
        }
    });
}

protected void T3() {
    HandlerThread handlerThread = new HandlerThread("name-thread");
    handlerThread.start();
    handler = new Handler(handlerThread.getLooper()) {
        @Override
        public void handleMessage(Message msg) {
            super.handleMessage(msg);
            System.out.println(Thread.currentThread().getName());
            System.out.println("T33333333333333333");
        }
    };
}

protected void T4() {
    Thread thread = new Thread() {
        @Override
        public void run() {
            super.run();
            Looper.prepare();
            handlerT4 = new Handler() {
                @Override
                public void handleMessage(Message msg) {
                    super.handleMessage(msg);
                    System.out.println("T44444444444444444444");
                }
            };
            Looper.loop();
        }
    };
    thread.start();
}

class Tthread extends Thread {
    @Override
    public void run() {
        super.run();
        Looper.prepare();
        hh = new HH();
        Looper.loop();
    }
}

class HH extends Handler {
    @Override
    public void handleMessage(Message msg) {
        super.handleMessage(msg);
        System.out.println("HHHHHHHHHHHHHHHHHHHHHHHH");
        System.out.println(Thread.currentThread().getName());
    }
}

2018年7月15日日曜日

StreamConfigurationMap

StreamConfigurationMap

CameraManager cameraManager = (CameraManager) getSystemService(CAMERA_SERVICE);
CameraCharacteristics cameraCharacteristics = cameraManager.getCameraCharacteristics("0");
StreamConfigurationMap streamConfigurationMap = cameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);
Size[] a = streamConfigurationMap.getOutputSizes(MediaRecorder.class);
Size[] b = streamConfigurationMap.getOutputSizes(SurfaceHolder.class);




System.out.println(streamConfigurationMap);
07-15 01:25:52.463 7881-7881/? I/System.out: 
StreamConfiguration(Outputs( 
[w:4096, h:3072, format:JPEG(256), min_duration:0, stall:1093386752], 
[w:4096, h:2304, format:JPEG(256), min_duration:0, stall:870040064], 
[w:3648, h:2736, format:JPEG(256), min_duration:0, stall:908645888], 
[w:3648, h:2052, format:JPEG(256), min_duration:0, stall:731484416],
[w:3264, h:2448, format:JPEG(256), min_duration:0, stall:767309312],
[w:3264, h:1836, format:JPEG(256), min_duration:0, stall:625481984], 
[w:2592, h:1944, format:JPEG(256), min_duration:0, stall:557758208],
[w:2592, h:1458, format:JPEG(256), min_duration:0, stall:468318656],
[w:2080, h:1560, format:JPEG(256), min_duration:0, stall:430380800],
[w:2080, h:1170, format:JPEG(256), min_duration:0, stall:372785600], 
[w:2048, h:1536, format:JPEG(256), min_duration:0, stall:423346688],
[w:1920, h:1080, format:JPEG(256), min_duration:0, stall:347225600], 
[w:1600, h:1200, format:JPEG(256), min_duration:0, stall:336320000],
[w:1600, h:900, format:JPEG(256), min_duration:0, stall:302240000], 
[w:1280, h:720, format:JPEG(256), min_duration:0, stall:265433600], 
[w:800, h:600, format:JPEG(256), min_duration:0, stall:234080000],
[w:720, h:480, format:JPEG(256), min_duration:0, stall:224537600],
[w:640, h:480, format:JPEG(256), min_duration:0, stall:221811200],
[w:352, h:288, format:JPEG(256), min_duration:0, stall:207197696],
[w:320, h:240, format:JPEG(256), min_duration:0, stall:205452800],
[w:176, h:144, format:JPEG(256), min_duration:0, stall:201799424],
[w:1920, h:1080, format:PRIVATE(34), min_duration:0, stall:0],
[w:1280, h:960, format:PRIVATE(34), min_duration:0, stall:0], 
[w:1280, h:720, format:PRIVATE(34), min_duration:0, stall:0],
[w:800, h:600, format:PRIVATE(34), min_duration:0, stall:0], 
[w:720, h:480, format:PRIVATE(34), min_duration:0, stall:0], 
[w:640, h:480, format:PRIVATE(34), min_duration:0, stall:0],
[w:352, h:288, format:PRIVATE(34), min_duration:0, stall:0],
[w:320, h:240, format:PRIVATE(34), min_duration:0, stall:0], 
[w:176, h:144, format:PRIVATE(34), min_duration:0, stall:0], 
[w:1920, h:1080, format:YUV_420_888(35), min_duration:0, stall:0],
[w:1280, h:960, format:YUV_420_888(35), min_duration:0, stall:0],
[w:1280, h:720, format:YUV_420_888(35), min_duration:0, stall:0],
[w:800, h:600, format:YUV_420_888(35), min_duration:0, stall:0],
[w:720, h:480, format:YUV_420_888(35), min_duration:0, stall:0], 
[w:640, h:480, format:YUV_420_888(35), min_duration:0, stall:0], 
[w:352, h:288, format:YUV_420_888(35), min_duration:0, stall:0],
[w:320, h:240, format:YUV_420_888(35), min_duration:0, stall:0],
[w:176, h:144, format:YUV_420_888(35), min_duration:0, stall:0], 
[w:1920, h:1080, format:YV12(842094169), min_duration:0, stall:0], 
[w:1280, h:960, format:YV12(842094169), min_duration:0, stall:0],
[w:1280, h:720, format:YV12(842094169), min_duration:0, stall:0], 
[w:800, h:600, format:YV12(842094169), min_duration:0, stall:0], 
[w:720, h:480, format:YV12(842094169), min_duration:0, stall:0], 
[w:640, h:480, format:YV12(842094169), min_duration:0, stall:0],
[w:352, h:288, format:YV12(842094169), min_duration:0, stall:0],
[w:320, h:240, format:YV12(842094169), min_duration:0, stall:0],
[w:176, h:144, format:YV12(842094169), min_duration:0, stall:0]), HighResolutionOutputs(), Inputs(), ValidOutputFormatsForInput(), HighSpeedVideoConfigurations())


int[] iii = streamConfigurationMap.getOutputFormats();
256
34
35
842094169



2018年7月5日木曜日

android.hardware.camera2, android.view.TextureView

android.hardware.camera2, android.view.TextureView

下面的代碼可以打開相機

package com.kankanla.e560.m180704camera;

import android.Manifest;
import android.annotation.SuppressLint;
import android.content.pm.PackageManager;
import android.graphics.SurfaceTexture;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureRequest;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v4.app.ActivityCompat;
import android.support.v7.app.AppCompatActivity;
import android.view.Surface;
import android.view.TextureView;

import java.util.Arrays;

public class MainActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (ActivityCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
            ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, 88);
            return;
        } else {
            camera();
        }
    }

    @Override
    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {
        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        camera();
    }

    protected void camera() {
        final CameraManager cameraManager = (CameraManager) getSystemService(CAMERA_SERVICE);
        final TextureView textureView = findViewById(R.id.textureView);
        textureView.setSurfaceTextureListener(new TextureView.SurfaceTextureListener() {
            @SuppressLint("MissingPermission")
            @Override
            public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {
                final Surface sss = new Surface(surface);
                try {
                    cameraManager.openCamera("0", new CameraDevice.StateCallback() {
                        @Override
                        public void onOpened(@NonNull final CameraDevice camera) {
                            try {
                                camera.createCaptureSession(Arrays.asList(sss), new CameraCaptureSession.StateCallback() {
                                    @Override
                                    public void onConfigured(@NonNull CameraCaptureSession session) {

                                        try {
                                            CaptureRequest.Builder captureRequest = camera.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
                                            captureRequest.addTarget(sss);
                                            session.setRepeatingRequest(captureRequest.build(), new CameraCaptureSession.CaptureCallback() {
                                                @Override
                                                public void onCaptureStarted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, long timestamp, long frameNumber) {
                                                    super.onCaptureStarted(session, request, timestamp, frameNumber);
                                                }
                                            }, null);

                                        } catch (CameraAccessException e) {
                                            e.printStackTrace();
                                        }
                                    }

                                    @Override
                                    public void onConfigureFailed(@NonNull CameraCaptureSession session) {

                                    }
                                }, null);
                            } catch (CameraAccessException e) {
                                e.printStackTrace();
                            }
                        }

                        @Override
                        public void onDisconnected(@NonNull CameraDevice camera) {

                        }

                        @Override
                        public void onError(@NonNull CameraDevice camera, int error) {

                        }
                    }, null);
                } catch (CameraAccessException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {

            }

            @Override
            public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {
                return false;
            }

            @Override
            public void onSurfaceTextureUpdated(SurfaceTexture surface) {

            }
        });
    }
}








2018年7月1日日曜日

android.hardware.camera2

android.hardware.camera2

下面的代碼可以打開相機

package com.kankanla.e560.m180701_camera;

import android.annotation.SuppressLint;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraDevice;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureRequest;
import android.os.Bundle;
import android.support.annotation.NonNull;
import android.support.v7.app.AppCompatActivity;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

import java.util.Arrays;

public class MainActivity extends AppCompatActivity {


    @Override
    protected void onCreate(final Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        try {
            mCamera();
        } catch (CameraAccessException e) {
            e.printStackTrace();
        }
    }

    @SuppressLint("MissingPermission")
    protected void mCamera() throws CameraAccessException {
        SurfaceView surfaceView = findViewById(R.id.surfaceView);
        final Surface surface = surfaceView.getHolder().getSurface();
        SurfaceHolder surfaceHolder = surfaceView.getHolder();
        final CameraManager cameraManager = (CameraManager) getSystemService(CAMERA_SERVICE);

        surfaceHolder.addCallback(new SurfaceHolder.Callback() {
            @Override
            public void surfaceCreated(SurfaceHolder holder) {
                try {
                    cameraManager.openCamera("0", new CameraDevice.StateCallback() {
                        @Override
                        public void onOpened(@NonNull final CameraDevice camera) {
                            try {
                                camera.createCaptureSession(Arrays.asList(surface), new CameraCaptureSession.StateCallback() {
                                    @Override
                                    public void onConfigured(@NonNull CameraCaptureSession session) {
                                        try {
                                            CaptureRequest.Builder builder = camera.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
                                            builder.addTarget(surface);
                                            CaptureRequest captureRequest = builder.build();
                                            session.setRepeatingRequest(captureRequest, new CameraCaptureSession.CaptureCallback() {
                                                @Override
                                                public void onCaptureStarted(@NonNull CameraCaptureSession session, @NonNull CaptureRequest request, long timestamp, long frameNumber) {
                                                    super.onCaptureStarted(session, request, timestamp, frameNumber);
                                                }
                                            }, null);
                                        } catch (CameraAccessException e) {
                                            e.printStackTrace();
                                        }
                                    }

                                    @Override
                                    public void onConfigureFailed(@NonNull CameraCaptureSession session) {

                                    }
                                }, null);
                            } catch (CameraAccessException e) {
                                e.printStackTrace();
                            }
                        }

                        @Override
                        public void onDisconnected(@NonNull CameraDevice camera) {

                        }

                        @Override
                        public void onError(@NonNull CameraDevice camera, int error) {

                        }
                    }, null);
                } catch (CameraAccessException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void surfaceChanged(SurfaceHolder holder, int format, int width, int height) {

            }

            @Override
            public void surfaceDestroyed(SurfaceHolder holder) {

            }
        });
    }
}










2018年4月21日土曜日

為Fragment添加一個接口,是能在MainActivity下找到Fragment下的子控件View

為Fragment添加一個接口,是能在MainActivity下找到Fragment下的子控件View

public class F1 extends Fragment {
    private View view;
    public Find_button find_button;

    public void getFind_button(Find_button find_button) {
        this.find_button = find_button;
    }

    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, Bundle savedInstanceState) {
        super.onCreateView(inflater, container, savedInstanceState);
        view = inflater.inflate(R.layout.f1, null);
        return view;
    }

    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        find_button.button(view);
    }

}

interface Find_button {
    void button(View view);
}


-----------------------------------
public class MainActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        addf1();
    }

    protected void addf1() {
        FragmentManager fragmentManager = getFragmentManager();
        FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();
        F1 f1 = new F1();
        fragmentTransaction.add(R.id.f1, f1, "f1");
        fragmentTransaction.commit();
        f1.getFind_button(new Find_button() {
            @Override
            public void button(View view) {
                final Button button = view.findViewById(R.id.button);
                button.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View v) {
                        button.setText("F1.Button");
                        Toast.makeText(MainActivity.this, "F1.Button", Toast.LENGTH_SHORT).show();
                    }
                });
            }
        });
    }
}




2018年4月5日木曜日

Creating a Custom Toast View

Creating a Custom Toast View
创建自定义Toast视图

 LayoutInflater layoutInflater = getLayoutInflater();
 View view = layoutInflater.inflate(R.layout.toastlayout ,null);
 TextView textView = view.findViewById(R.id.tx);
 textView.setText("Creating a Custom Toast View");
 Toast toast = new Toast(getContext());
 toast.setView(view);
 toast.setGravity(Gravity.CENTER_VERTICAL, 0, 0);
 toast.setDuration(Toast.LENGTH_LONG);
 toast.show();



<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_weight="1"
        app:srcCompat="@android:drawable/btn_dialog" />

    <TextView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/tx"/>
</LinearLayout>