安卓调用摄像头拍照保存再内置存储器里

发布时间：2020-09-16 21:04:36

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先创建一个目录

Java

// 创建目录 获得SD卡的实际路径。
AppDir=Environment.getExternalStorageDirectory().getAbsolutePath()+"/jinesc.zc/";
 File dir = new File(AppDir);
 if (!dir.exists()) dir.mkdirs();

下面是调用相机保存文件的代码

Java

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
 if (intent.resolveActivity(getPackageManager()) != null) {
     ContentValues contentValues = new ContentValues(2);
     String filePath = AppDir+System.currentTimeMillis() + ".jpg";//要保存照片的绝对路径
     contentValues.put(MediaStore.Images.Media.DATA, filePath); //保存再指定位置
     //如果想拍完存在系统相机的默认目录,改为
     //String filePath = System.currentTimeMillis() + ".jpg";//要保存照片的绝对路径
     textview.setText(filePath);
     //contentValues.put(MediaStore.Images.Media.DISPLAY_NAME, filePath);  //保存再系统相册里
     contentValues.put(MediaStore.Images.Media.MIME_TYPE, "image/jpeg");
     Uri mPhotoUri = getContentResolver().insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues);

     intent.putExtra(MediaStore.EXTRA_OUTPUT, mPhotoUri);
     startActivityForResult(intent, 103);
 }

安卓6.0动态权限的获取

Java

// 申请相机权限
if (ActivityCompat.checkSelfPermission(Assets_input.this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {
    // 申请权限
    if (ActivityCompat.shouldShowRequestPermissionRationale(Assets_input.this, Manifest.permission
            .CAMERA)) {
        Toast.makeText(this, "请至权限中心打开本应用的相机访问权限", Toast.LENGTH_SHORT).show();
    }
    ActivityCompat.requestPermissions(Assets_input.this, new String[]{Manifest.permission.CAMERA}, com.dommy.qrcodelib.util.Constant.REQ_PERM_CAMERA);
    return;
}
//
// 申请文件读写权限（部分朋友遇到相册选图需要读写权限的情况，这里一并写一下）
if (ActivityCompat.checkSelfPermission(Assets_input.this, Manifest.permission.READ_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
    // 申请权限
    if (ActivityCompat.shouldShowRequestPermissionRationale(Assets_input.this, Manifest.permission
            .WRITE_EXTERNAL_STORAGE)) {
        Toast.makeText(Assets_input.this, "请至权限中心打开本应用的文件读写权限", Toast.LENGTH_SHORT).show();
    }
    ActivityCompat.requestPermissions(Assets_input.this, new String[]{Manifest.permission.READ_EXTERNAL_STORAGE}, com.dommy.qrcodelib.util.Constant.REQ_PERM_EXTERNAL_STORAGE);
    return;
}
// 申请文件读写权限（部分朋友遇到相册选图需要读写权限的情况，这里一并写一下）
if (ActivityCompat.checkSelfPermission(Assets_input.this, Manifest.permission.WRITE_EXTERNAL_STORAGE) != PackageManager.PERMISSION_GRANTED) {
    // 申请权限
    if (ActivityCompat.shouldShowRequestPermissionRationale(Assets_input.this, Manifest.permission
            .WRITE_EXTERNAL_STORAGE)) {
        Toast.makeText(Assets_input.this, "请至权限中心打开本应用的文件读写权限", Toast.LENGTH_SHORT).show();
    }
    ActivityCompat.requestPermissions(Assets_input.this, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, com.dommy.qrcodelib.util.Constant.REQ_PERM_EXTERNAL_STORAGE);
    return;
}

Java

 AndroidManifest.xml
<uses-permission android:name="android.permission.INTERNET" /> <!-- 网络权限 -->
<uses-permission android:name="android.permission.VIBRATE" /> <!-- 震动权限 -->
<uses-permission android:name="android.permission.CAMERA" /> <!-- 摄像头权限 -->
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.PERMISSIONS_STORAGE"/>