Android系统录制视频（适配7.0）

package com.learn.lister.systemvediorecord; import android.content.Intent; import android.net.Uri; import android.os.Build; import android.os.Environment; import android.provider.MediaStore; import android.support.v4.content.FileProvider; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.Button; import java.io.File; import java.io.IOException; import java.text.SimpleDateFormat; import java.util.Date; import static android.provider.MediaStore.Files.FileColumns.MEDIA_TYPE_VIDEO; public class MainActivity extends AppCompatActivity { private Uri fileUri; private Button main_button_record; private Button main_button_get; private int CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE = 1; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); main_button_record = findViewById(R.id.main_button_record); main_button_get = findViewById(R.id.main_button_get); // 点击录制视频，调用系统播放器开始录像 main_button_record.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { File file = null; try { file = createMediaFile(); } catch (IOException e) { e.printStackTrace(); } Intent intent; Log.e("TAG", file.getName()); if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) { intent = new Intent(); intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION); fileUri = FileProvider.getUriForFile(MainActivity.this, "com.learn.lister.systemvediorecord.fileProvider", file); } else { intent = new Intent(); fileUri = Uri.fromFile(file); } intent.setAction("android.media.action.VIDEO_CAPTURE"); intent.addCategory("android.intent.category.DEFAULT"); intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri); // 设置视频文件的名字 intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // 设置视频质量为高 startActivityForResult(intent, CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE); } }); // 点击查看视频文件，进入视频列表查看所有的视频文件 main_button_get.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { startActivity(new Intent(MainActivity.this, MyVideosActivity.class)); } }); } /** * 创建一个文件的 uri，供视频录制完保存 */ private File createMediaFile() throws IOException { // 如果 SD 卡存在，则在外部存储建立一个文件夹用于存放视频 if ((Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED))) { // 选择自己的文件夹 String path = Environment.getExternalStorageDirectory().getPath(); File mediaStorageDir = new File(path + Constants.video_url); if (!mediaStorageDir.exists()) { if (!mediaStorageDir.mkdirs()) { Log.e("TAG", "文件夹创建失败"); return null; } } // 文件根据当前的毫秒数给自己命名 String timeStamp = String.valueOf(System.currentTimeMillis()); timeStamp = timeStamp.substring(7); String imageFileName = "V" + timeStamp; String suffix = ".mp4"; File mediaFile = new File(mediaStorageDir + File.separator + imageFileName + suffix); return mediaFile; } return null; } }