Android调用系统自带的文件管理器进行文件选择并获得路径

public class MainActivity extends AppCompatActivity {     @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        Button btn= (Button) findViewById(R.id.btn);        btn.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Intent intent = new Intent(Intent.ACTION_GET_CONTENT);                intent.setType("*/*");//设置类型，我这里是任意类型，任意后缀的可以这样写。                intent.addCategory(Intent.CATEGORY_OPENABLE);                startActivityForResult(intent,1);            }        });    }}

//intent.setType(“image/*”);//选择图片//intent.setType(“audio/*”); //选择音频//intent.setType(“video/*”); //选择视频 （mp4 3gp 是android支持的视频格式）//intent.setType(“video/*;image/*”);//同时选择视频和图片

onActivityResult函数响应了选择文件的操作。

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        if (resultCode == Activity.RESULT_OK) {            if (requestCode == 1) {                Uri uri = data.getData();                Toast.makeText(this, "文件路径："+uri.getPath().toString(), Toast.LENGTH_SHORT).show();            }        }    }

---------------------------------------------------------private static final int FILE_SELECT_CODE = 0;private static final String TAG = "VideoActivity";private void chooseFile() {Intent intent = new Intent(Intent.ACTION_GET_CONTENT);intent.setType("*/*");intent.addCategory(Intent.CATEGORY_OPENABLE);try {startActivityForResult(Intent.createChooser(intent, "选择文件"), FILE_SELECT_CODE);} catch (android.content.ActivityNotFoundException ex) {Toast.makeText(this, "亲，木有文件管理器啊-_-!!", Toast.LENGTH_SHORT).show();}}@Overridepublic void onActivityResult(int requestCode, int resultCode, Intent data) {// TODO Auto-generated method stubif (resultCode != Activity.RESULT_OK) {Log.e(TAG, "onActivityResult() error, resultCode: " + resultCode);super.onActivityResult(requestCode, resultCode, data);return;}if (requestCode == FILE_SELECT_CODE) {Uri uri = data.getData();Log.i(TAG, "------->" + uri.getPath());}super.onActivityResult(requestCode, resultCode, data);}

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