Android常用檔案檔案路徑介紹

import android.content.Context;
import android.os.Bundle;
import android.os.Environment;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;

public class MainActivity extends AppCompatActivity {
    private static  final  String TAG = MainActivity.class.getSimpleName();
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        Log.e(TAG,"getCacheDir() =   "+getCacheDir().getAbsolutePath());
        Log.e(TAG,"getFilesDir() =   "+getFilesDir().getAbsolutePath());
        Log.e(TAG,"getExternalCacheDir() =   "+getExternalCacheDir().getAbsolutePath());
        Log.e(TAG,"Environment.getExternalStorageDirectory() =  "+ Environment.getExternalStorageDirectory().getAbsolutePath());
        Log.e(TAG,"Environment.getExternalStoragePublicDirectory() =    "+Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM).getAbsolutePath());
        Log.e(TAG,"getExternalFilesDir(“Pictures”) =   "+getExternalFilesDir(Environment.DIRECTORY_PICTURES).getAbsolutePath());
        Log.e(TAG,"getExternalFilesDir(null) =   "+getExternalFilesDir(null).getAbsolutePath());
        Log.e(TAG,"Environment.getDataDirectory() =   "+Environment.getDataDirectory().getAbsolutePath());
        Log.e(TAG,"Environment.getDownloadCacheDirectory() =   "+Environment.getDownloadCacheDirectory().getAbsolutePath());
        Log.e(TAG,"Environment.getRootDirectory() =   "+Environment.getRootDirectory().getAbsolutePath());
        Log.e(TAG,"getPackageCodePath() =   "+getPackageCodePath());
        Log.e(TAG,"getPackageResourcePath() =   "+getPackageResourcePath());
        Log.e(TAG,"getDatabasePath(“test”) =   "+getDatabasePath("test"));
        Log.e(TAG,"getDir(“test”, Context.MODE_PRIVATE) =   "+getDir("test", Context.MODE_PRIVATE));
    }
}