android – Environment.getExternalStorageState()在虚拟设备上返回false

概述我正在尝试检查外部存储是否可用,或者我认为我做得正确它仍然说存储不可用. private String state; protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.externaldata @H_419_4@ 我正在尝试检查外部存储是否可用,或者我认为我做得正确它仍然说存储不可用.

private String state;    protected voID onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);        setContentVIEw(R.layout.externaldata);        eWrite = (TextVIEw) findVIEwByID(R.ID.tveWrite);        eRead = (TextVIEw) findVIEwByID(R.ID.tveRead);        enviromentState = Environment.getExternalStorageState();        if (enviromentState.equals(Environment.MEDIA_MOUNTED)) {                    // read and write                    eWrite.setText("you can write");                    eRead.setText("you can read");                } else if (enviromentState.equals(Environment.MEDIA_MOUNTED_READ_ONLY)) {                    // read but cant write                    eWrite.setText("you cannot write ");                    eRead.setText("but you can read");                } else {                    eWrite.setText("you cannot write");                    eRead.setText("you canot read");                }    }

我还给了AndroIDManifest.xml的权限

<uses-permission androID:name="androID.permission.WRITE_EXTERNAL_STORAGE"/>    <uses-permission androID:name="androID.permission.READ_EXTERNAL_STORAGE"/>

这里是我的虚拟设备的屏幕截图.

@H_419_4@解决方法 我通过将SD卡大小扩展到151mb来解决我的问题@H_419_4@ @H_419_4@ @H_419_4@ @H_419_4@ 总结

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