Android 存储 内部存储

 

 给出关键代码

public void save(View view) throws IOException {
        AssetManager manager = getAssets();
        InputStream is = manager.open("logo.png");

        FileOutputStream fos = openFileOutput("logo.png", Context.MODE_PRIVATE);
        byte[] buffer = new byte[1024];
        int len = -1;
        while((len = is.read(buffer))!=-1){
            fos.write(buffer,0,len);
        }
        fos.close();
        is.close();
        Toast.makeText(this,"保存完成",Toast.LENGTH_LONG).show();
    }

    public void read(View view) {

        String filePath = getFilesDir().getAbsolutePath();
        String imgPath = filePath+"/logo.png";
        Bitmap bitmap = BitmapFactory.decodeFile(imgPath);
        iv_if.setImageBitmap(bitmap);
    }

　　AssetManager manager = getAssets();
　　InputStream is = manager.open("logo.png");  //这里打开的是Assets下的文件

FileOutputStream fos = openFileOutput("logo.png", Context.MODE_PRIVATE);  //这里完整路径 /data/user/0/com.example.storage/files/logo.png

String filePath = getFilesDir().getAbsolutePath(); //这里完整路径 /data/user/0/com.example.storage/files/