Android开发实现录屏小功能
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2020-08-18
17:38:03
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Android开发实现录屏小功能开发实现录屏小功能
主要介绍了Android开发实现录屏小功能，文中示例代码介绍的非常详细，具有一定的参考价值，感兴趣的小伙
伴们可以参考一下
最近开发中，要实现录屏功能，查阅相关资料，发现调用 MediaProjectionManager的api 实现录屏功能即可：
import android.Manifest;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.media.projection.MediaProjectionManager;
import android.os.Build;
import android.os.Bundle;
import android.util.DisplayMetrics;
import android.util.Log;
public class RecordScreenActivity extends Activity {
private boolean isRecord = false;
private int mScreenWidth;
private int mScreenHeight;
private int mScreenDensity;
private int REQUEST_CODE_PERMISSION_STORAGE = 100;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestPermission();
getScreenBaseInfo();
startScreenRecord();
}
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == 1000) {
if (resultCode == RESULT_OK) {
//获得录屏权限，启动Service进行录制
Intent intent = new Intent(this, ScreenRecordService.class);
intent.putExtra("resultCode", resultCode);
intent.putExtra("resultData", data);
intent.putExtra("mScreenWidth", mScreenWidth);
intent.putExtra("mScreenHeight", mScreenHeight);
intent.putExtra("mScreenDensity", mScreenDensity);
startService(intent);
finish();
}
}
}
//start screen record
private void startScreenRecord() {
//Manages the retrieval of certain types of MediaProjection tokens.
MediaProjectionManager mediaProjectionManager =
(MediaProjectionManager) getSystemService(Context.MEDIA_PROJECTION_SERVICE);
//Returns an Intent that must passed to startActivityForResult() in order to start screen capture.
Intent permissionIntent = mediaProjectionManager.createScreenCaptureIntent();
startActivityForResult(permissionIntent, 1000);
}
/**
* 获取屏幕基本信息
*/
private void getScreenBaseInfo() {
//A structure describing general information about a display, such as its size, density, and font scaling.
DisplayMetrics metrics = new DisplayMetrics();
getWindowManager().getDefaultDisplay().getMetrics(metrics);
mScreenWidth = metrics.widthPixels;
mScreenHeight = metrics.heightPixels;
mScreenDensity = metrics.densityDpi;
}
@Override
protected void onDestroy() {
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