Android--截屏（支持Android7.1.1，无需root）

import android.Manifest;import android.content.Context;import android.content.Intent;import android.content.pm.PackageManager;import android.graphics.Bitmap;import android.graphics.drawable.BitmapDrawable;import android.media.projection.MediaProjectionManager;import android.os.Build;import android.os.Bundle;import android.support.annotation.RequiresApi;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.View;import android.widget.Button;import android.widget.ImageView;import java.util.ArrayList;import java.util.List;public class MainActivity extends AppCompatActivity {    MediaProjectionManager mediaProjectionManager;    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        checkPermission();        mediaProjectionManager = (MediaProjectionManager) getApplication().getSystemService(Context.MEDIA_PROJECTION_SERVICE);        startActivityForResult(mediaProjectionManager.createScreenCaptureIntent(), 1);        final Button button = findViewById(R.id.bt_screenshot);        final ImageView imageView = findViewById(R.id.img_display);        button.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                if (MyApplication.mediaProjection != null) {                    MyApplication.time = System.currentTimeMillis();                    Bitmap bitmap = CreateBitmap.getInstance(MainActivity.this, true, null, "null").getBitmap();                    if (bitmap == null) {                        Log.i("img", "bitmap为空");                    } else {                        imageView.setBackground(new BitmapDrawable(null, bitmap));                    }                } else {                    Log.i("img", "未获取到截屏权限");                }            }        });    }    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        MyApplication.mediaProjection = mediaProjectionManager.getMediaProjection(resultCode, data);    }    public void checkPermission() {        final List permissionsList = new ArrayList<>();        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {            if ((checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)) {                permissionsList.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);            } else {            }            if (permissionsList.size() != 0) {                requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),                        100);            }        }    }    @RequiresApi(api = Build.VERSION_CODES.M)    @Override    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {        if (requestCode == 100) {            if (grantResults.length > 0 && (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)) {            } else {                Log.i("img", "未获取权限");            }        }///instant-run    }}

import android.content.Context;import android.content.Intent;import android.graphics.Bitmap;import android.graphics.PixelFormat;import android.hardware.display.DisplayManager;import android.hardware.display.VirtualDisplay;import android.media.Image;import android.media.ImageReader;import android.media.projection.MediaProjection;import android.net.Uri;import android.os.Build;import android.os.Environment;import android.support.annotation.RequiresApi;import android.util.DisplayMetrics;import android.util.Log;import android.view.WindowManager;import android.widget.Toast;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.nio.ByteBuffer;import static android.content.Context.WINDOW_SERVICE;/** * Created by Administrator on 2017/3/16. */public class CreateBitmap {    private static MediaProjection mediaProjection = MyApplication.mediaProjection;    private static ImageReader mImageReader;    private static VirtualDisplay virtualDisplay1;    private static DisplayMetrics displayMetrics = new DisplayMetrics();    private static WindowManager windowManager;    private static Bitmap bmp, bitmap;    private static Image image;    private static int width;    private static int height;    private static int pixelStride;    private static int rowStride;    private static int rowPadding;    private static String path, name;    private static int screenwidth, screenheight;    private static Image.Plane[] planes;    static ByteBuffer buffer;    private static class singleHolder {        static final CreateBitmap createbitmap = new CreateBitmap();    }    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)    public static CreateBitmap getInstance(final Context context, final Boolean isSave, String inpath, String inname) {        init(context, inpath, inname);        if (image != null) {            analysesImage();            long time = System.currentTimeMillis() - MyApplication.time;            Log.i("img", "截图已生成" + time);            if (isSave)                savePic(context);        }        return singleHolder.createbitmap;    }    private static void loop() {        do {            try {                Thread.sleep(10);            } catch (InterruptedException e) {                e.printStackTrace();            }        } while (image != null);    }    //    初始化操作    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)    private static void init(final Context context, String inpath, String inname) {        if (bitmap != null) {            bitmap = null;        }        path = inpath;        name = inname;        windowManager = (WindowManager) context.getSystemService(WINDOW_SERVICE);        windowManager.getDefaultDisplay().getMetrics(displayMetrics);        screenwidth = displayMetrics.widthPixels;        screenheight = displayMetrics.heightPixels;        mImageReader = ImageReader.newInstance(screenwidth, screenheight, PixelFormat.RGBA_8888, 2);        virtualDisplay1 = mediaProjection.createVirtualDisplay("screen-mirror", screenwidth, screenheight, displayMetrics.densityDpi, DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, mImageReader.getSurface(), null, null);        do {            try {                Thread.sleep(10);                image = mImageReader.acquireLatestImage();            } catch (InterruptedException e) {                e.printStackTrace();            }        } while (image == null);    }    //解析image    private static void analysesImage() {        planes = image.getPlanes();        buffer = planes[0].getBuffer();        width = image.getWidth();        height = image.getHeight();        pixelStride = planes[0].getPixelStride();        rowStride = planes[0].getRowStride();        rowPadding = rowStride - pixelStride * width;        bmp = Bitmap.createBitmap(width + rowPadding / pixelStride, height, Bitmap.Config.ARGB_8888);        bmp.copyPixelsFromBuffer(buffer);        bitmap = Bitmap.createScaledBitmap(bmp, bmp.getWidth(), bmp.getHeight(), false);        image.close();    }    //保存图片    private static void savePic(Context context) {        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState()) && bitmap != null) {            if (path == null) {                path = Environment.getExternalStorageDirectory().getPath() + "/Android/screen";            } else {                path = Environment.getExternalStorageDirectory().getPath() + path;            }            File file = new File(path);            if (!file.exists()) {                file.mkdir();            }            if (name == null) {                name = System.currentTimeMillis() + "";            }            File file1 = new File(file, name + ".jpg");            try {                FileOutputStream fileOutputStream = new FileOutputStream(file1);                bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fileOutputStream);                fileOutputStream.flush();                fileOutputStream.close();                Log.i("img", "截屏已保存到本地" + path);                Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);                Uri uri = Uri.fromFile(file1);                intent.setData(uri);                context.sendBroadcast(intent);            } catch (FileNotFoundException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            }        }    }    public Bitmap getBitmap() {        return bitmap;    }}

import android.app.Application;import android.media.projection.MediaProjection;public class MyApplication extends Application {    public  static MediaProjection mediaProjection;    public  static  long time;}

import android.Manifest;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.content.pm.PackageManager;import android.graphics.Bitmap;import android.graphics.PixelFormat;import android.hardware.display.DisplayManager;import android.hardware.display.VirtualDisplay;import android.media.Image;import android.media.ImageReader;import android.media.projection.MediaProjection;import android.media.projection.MediaProjectionManager;import android.net.Uri;import android.os.Build;import android.os.Bundle;import android.os.Environment;import android.os.Handler;import android.support.annotation.RequiresApi;import android.util.DisplayMetrics;import android.util.Log;import android.view.WindowManager;import java.io.File;import java.io.FileNotFoundException;import java.io.FileOutputStream;import java.io.IOException;import java.nio.ByteBuffer;import java.util.ArrayList;import java.util.List;/** * Created by Administrator on 2017/3/8. */public class ScreenShotActivity extends Activity {    MediaProjectionManager mediaProjectionManager;    MediaProjection mediaProjection;    ImageReader mImageReader;    VirtualDisplay virtualDisplay1;    DisplayMetrics displayMetrics;    WindowManager windowManager;    String name, path;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        Intent intent = getIntent();        name = intent.getStringExtra("name");        path = intent.getStringExtra("path");        checkPermission();    }    public void requestCapturePermission() {        if (Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {            //5.0 之后才允许使用屏幕截图            return;        }        mediaProjectionManager = (MediaProjectionManager)                getApplication().getSystemService(Context.MEDIA_PROJECTION_SERVICE);        startActivityForResult(                mediaProjectionManager.createScreenCaptureIntent(),                1);    }    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        mediaProjection = mediaProjectionManager.getMediaProjection(resultCode, data);//        try {//            Thread.sleep(1000*5);//        } catch (InterruptedException e) {//            e.printStackTrace();//        }        captureScreen();    }    public void checkPermission() {        final List permissionsList = new ArrayList<>();        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {            if ((checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED)) {                permissionsList.add(Manifest.permission.WRITE_EXTERNAL_STORAGE);            } else {                requestCapturePermission();            }            if (permissionsList.size() != 0) {                requestPermissions(permissionsList.toArray(new String[permissionsList.size()]),                        100);            }        }    }    @RequiresApi(api = Build.VERSION_CODES.M)    @Override    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {        if (requestCode == 100) {            if (grantResults.length > 0 && (checkSelfPermission(Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED)) {                requestCapturePermission();            } else {                Log.e("ScreenShotActivity", "未获取权限");            }        }///instant-run    }    @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)    public void captureScreen() {        displayMetrics = new DisplayMetrics();        windowManager = (WindowManager) this.getSystemService(WINDOW_SERVICE);        windowManager.getDefaultDisplay().getMetrics(displayMetrics);        int width = displayMetrics.widthPixels;        int height = displayMetrics.heightPixels;        mImageReader = ImageReader.newInstance(width, height, PixelFormat.RGBA_8888, 2);        virtualDisplay1 = mediaProjection.createVirtualDisplay("screen-mirror", width, height, displayMetrics.densityDpi, DisplayManager.VIRTUAL_DISPLAY_FLAG_AUTO_MIRROR, mImageReader.getSurface(), null, null);        Handler handler = new Handler();        handler.postDelayed(new Runnable() {            @Override            public void run() {                Image image = mImageReader.acquireLatestImage();                if (image != null) {                    final Image.Plane[] planes = image.getPlanes();                    final ByteBuffer buffer = planes[0].getBuffer();                    int width = image.getWidth();                    int height = image.getHeight();                    int pixelStride = planes[0].getPixelStride();                    int rowStride = planes[0].getRowStride();                    int rowPadding = rowStride - pixelStride * width;                    Bitmap bmp = Bitmap.createBitmap(width + rowPadding / pixelStride, height, Bitmap.Config.ARGB_8888);                    bmp.copyPixelsFromBuffer(buffer);                    Bitmap bitmap = Bitmap.createScaledBitmap(bmp, bmp.getWidth(), bmp.getHeight(), false);                    if(bitmap!=null){                        long spendtimes = System.currentTimeMillis() - MyApplication.time;                        Log.e("ScreenShotActivity", "bitmap成功时间" + spendtimes);                    }                    setSavePic(bitmap);                    bitmap.recycle();                    image.close();                }            }        }, 500);    }    private void setSavePic(Bitmap bitmap) {//保存截屏到本地        if (Environment.MEDIA_MOUNTED.equals(Environment.getExternalStorageState())) {            if (path == null) {                path = Environment.getExternalStorageDirectory().getPath() + "/截屏";            } else {                path = Environment.getExternalStorageDirectory().getPath() + "/" + path;            }            File file = new File(path);            if (!file.exists()) {                file.mkdir();            }            if (name == null) {                name = System.currentTimeMillis() + "";            }            File file1 = new File(file, name + ".jpg");            try {                FileOutputStream fileOutputStream = new FileOutputStream(file1);                bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fileOutputStream);                fileOutputStream.flush();                fileOutputStream.close();//                Toast.makeText(this, "截屏已保存到本地" + path, Toast.LENGTH_SHORT).show();                Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);                Uri uri = Uri.fromFile(file1);                intent.setData(uri);                sendBroadcast(intent);                finish();            } catch (FileNotFoundException e) {                e.printStackTrace();            } catch (IOException e) {                e.printStackTrace();            }        }    }}

import android.content.Context;import android.content.Intent;public class ShotClass {    private static class SingleHolder {        static final ShotClass shot = new ShotClass();    }    public static ShotClass getInstance() {        return SingleHolder.shot;    }    public void createShot(Context context, String path, String name) {        Intent intent = new Intent(context, ScreenShotActivity.class);        intent.putExtra("path", path);        intent.putExtra("name", name);        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);        context.startActivity(intent);    }}

下面是style的一些属性及其解释：

源码下载：https://download.csdn.net/download/chaoyu168/10516429

引用：

startActivity(new Intent(this, ScreenShotActivity.class));

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