[Android] google Map API usage 使用方法

google play service 常常變來變去
最近的用法是要滿足以下步驟

1. 加權限

AndroidManifest.xml
//  google map
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
//  location service
    <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
    <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

2. 加 meta data
   <application
        android:allowBackup="true"
        android:icon="@drawable/logo"
        android:label="@string/app_name" >
        <meta-data
            android:name="com.google.android.geo.API_KEY"
            android:value="xxxxxxx_your_key" />
        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version" />


3. 加 code 這是版本改變導致最大的變化


final GoogleMap map = mapView.getMap();
    final float zoomLevel = 16.0f;

m_GoogleApiClient = new GoogleApiClient.Builder(PageNear.this.getActivity())
        .addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks(){

@Override
public void onConnected(Bundle connectionHint) {
// TODO Auto-generated method stub
Log.d("", "");
Location location = LocationServices.FusedLocationApi.getLastLocation(m_GoogleApiClient);
map.moveCamera(CameraUpdateFactory.newLatLngZoom(
                        new LatLng(location.getLatitude(), location.getLongitude()), zoomLevel));

}

@Override
public void onConnectionSuspended(int cause) {
// TODO Auto-generated method stub
Log.d("", "");
}})
        .addOnConnectionFailedListener(new GoogleApiClient.OnConnectionFailedListener(){

@Override
public void onConnectionFailed(ConnectionResult result) {
// TODO Auto-generated method stub
Log.d("", "");
}})
        .addApi(LocationServices.API)
        .build();

        m_GoogleApiClient.connect();

[git] 徹底退回到某一版

git reset --hard <commit_id>

git push origin HEAD --force

[Android] MediaStore 的 databases 存在哪

/data/data/com.android.providers.media/databases/internal.db

/data/data/com.android.providers.media/databases/external.db

看你的資料存在哪，sdcard 是在 external.db

[Android]如何正常結束一個 HandlerThread

mHandlerThread.getLooper().quit()or
mHandlerThread.getLooper().quitSafely()
better
細節可直接攻讀 android 程式碼
http://developer.android.com/reference/android/os/Looper.html#quitSafely()