第十单元照相机与fileprovider机制_fileprobvider-优快云博客

实现功能：相机+摄像+浏览器+打电话+截屏

权限

  <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"></uses-permission>
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"></uses-permission>
    <uses-permission android:name="android.permission.CALL_PHONE"/>
    <uses-permission android:name="android.permission.CAMERA"/>

使用隐式意图打开浏览器

  Intent intent = new Intent();
                intent.setAction(Intent.ACTION_VIEW);
                Uri parse = Uri.parse("https://www.baidu.com/");
                intent.setData(parse);
                startActivity(intent);

使用隐式意图打电话

  Intent intent = new Intent();
        intent.setAction(Intent.ACTION_CALL);
        Uri parse = Uri.parse("tel:"+"1008611");
        intent.setData(parse);
        startActivity(intent);

截图

View decorView = getWindow().getDecorView();
        decorView.setDrawingCacheEnabled(true);
        Bitmap drawingCache = decorView.getDrawingCache();
        picId.setImageBitmap(drawingCache);
        try {
            drawingCache.compress(Bitmap.CompressFormat.PNG,100,new FileOutputStream("/mnt/sdcard/aa.png"));
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        }

照相机+FileProvider

清单文件注册FileProvider

  <provider
        android:authorities="hehe"
        android:name="android.support.v4.content.FileProvider"
        android:grantUriPermissions="true">
        <meta-data
            android:name="android.support.FILE_PROVIDER_PATHS"
            android:resource="@xml/fileprobider"/>
    </provider>

创建文件路径

<?xml version="1.0" encoding="utf-8"?>
<paths xmlns:android="http://schemas.android.com/apk/res/android">

    <external-path
        name="external_storage_root"
        path="."></external-path>

</paths>

使 Intent intent = new Intent();

  intent.setAction(MediaStore.ACTION_IMAGE_CAPTURE);
    File file = new File("/mnt/sdcard/hehe.png");
    Uri uriForFile = FileProvider.getUriForFile(MainActivity.this, "hehe", file);
    intent.putExtra(MediaStore.EXTRA_OUTPUT,uriForFile);
    startActivity(intent);用FileProvider将照片保存到SD卡中

摄像机

   Intent intent = new Intent();
        intent.setAction(MediaStore.ACTION_VIDEO_CAPTURE);
        startActivityForResult(intent,100);

回

@Override
    protected void onActivityResult(int requestCode, int resultCode, @Nullable Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (requestCode == 100 && requestCode == RESULT_OK){
            Uri data1 = data.getData();

        }
    }