Intent 与 Intent Filters 实现外部调用
Intent 与 Intent Filters
如需了解更多官方文档: 《App Components》
您还可以参考这些优秀博文：
- Android Intent最全面的解析
- 史上最全的隐式Intent解析
- Android deep links技术实现
Intent 应用
- deep links
- LAPP (Light App) 即轻应用
- APP 之间跳转等等
下面是一个小米轻应用示例
我们知道轻应用无非就是每个Activity 暴露接口给其它APP调用，若刚好你的APP Activity 很多，那就必须在Activity节点下增加
<intent-filter>...intent-filter>还有要在Activity 解析Intent ,还破坏了原有代码结构。仔细思考了一番，既然
<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.xiaomi.relax">
<application android:label="@string/app_name" android:largeHeap="true"
android:screenOrientation="landscape"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
<activity android:name=".activity.SplashActivity"
android:configChanges="keyboardHidden|orientation|screenSize"
android:label="@string/app_name" android:screenOrientation="landscape"
android:theme="@android:style/Theme.NoTitleBar.Fullscreen">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.APPSTORE_LAUNCHER" />
intent-filter>
activity>
<activity android:name=".activity.RelaxProxyActivity"
android:theme="@android:style/Theme.Translucent.NoTitleBar">
<intent-filter>
<action android:name="android.intent.action.VIEW" />
<category android:name="android.intent.category.DEFAULT" />
<category android:name="android.intent.category.BROWSABLE" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/splash"
android:scheme="hifi" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/home"
android:scheme="hifi" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/album"
android:scheme="hifi" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/theme"
android:scheme="hifi" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/radio"
android:scheme="hifi" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/song"
android:scheme="hifi" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/vip"
android:scheme="hifi" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/goods"
android:scheme="hifi" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/url"
android:scheme="hifi" />
<data android:host="com.hifimusic.xiaomi.qing" android:path="/meal"
android:scheme="hifi" />
intent-filter>
activity>
application>
manifest>
RelaxProxyActivity
public class RelaxProxyActivity extends Activity {
private static final String TAG = "RelaxProxyActivity";
UriParse uriParse = null;
final String splashPath = "/splash";
final String homePath = "/home";
final String ablumPath = "/album";
final String themePath = "/theme";
final String userPath = "/vip";
final String radioPath = "/radio";
final String playingPath = "/song";
final String goodsPath = "/goods";
final String urlPath = "/url";
final String mealPath = "/meal";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
uriParse = new UriParse(this);
//
String path = uriParse.getPath();
Log.i(TAG, "path: " + path);
Intent intent = new Intent();
//检查是否激活
int activate = Integer.parseInt(DataManager.getInstance().getString("activate", "0"));
if (activate == 0) {
intent.setClass(this, SplashActivity.class);
intent.setData(getIntent().getData());
startActivity(intent);
} else {
switch (path) {
case splashPath:
intent.setClass(this, SplashActivity.class);
startActivity(intent);
break;
case homePath:
int pos = 0;
try {
Integer id = Integer.valueOf(uriParse.getQueryParameter("id"));
pos = id > 0 ? id : 0;
} catch (NumberFormatException e) {
e.printStackTrace();
}
intent.setClass(this, HomeActivity.class);
intent.putExtra("pos", pos);
startActivity(intent);
break;
case ablumPath:
try {
long albumid = Long.valueOf(uriParse.getQueryParameter("id"));
intent.setClass(this, AlbumDetailActivity.class);
intent.putExtra("id", albumid);
startActivity(intent);
} catch (NumberFormatException e) {
e.printStackTrace();
}
break;
case themePath:
try {
long albumid = Long.valueOf(uriParse.getQueryParameter("id"));
intent.setClass(this, ThemeDetailActivity.class);
intent.putExtra("id", albumid);
startActivity(intent);
} catch (NumberFormatException e) {
e.printStackTrace();
}
break;
case userPath:
intent.setClass(this, UserInfoActivity.class);
startActivity(intent);
break;
case radioPath:
try {
long radioId = Long.valueOf(uriParse.getQueryParameter("id"));
intent.setClass(this, PlayingActivity.class);
intent.putExtra("contentId", radioId);
intent.putExtra(PlayingActivity.Extra_RadioAction, true);
startActivity(intent);
} catch (NumberFormatException e) {
e.printStackTrace();
}
break;
case playingPath:
intent.setClass(this, PlayingActivity.class);
startActivity(intent);
break;
case goodsPath:
try {
long goodsId = Long.valueOf(uriParse.getQueryParameter("id"));
intent.setClass(this, CommodityActivity.class);
startActivity(intent);
EventBus.getDefault().postSticky(goodsId);
} catch (NumberFormatException e) {
e.printStackTrace();
}
break;
case urlPath:
try {
String url = uriParse.getQueryParameter("url");
intent.setClass(this, CordovaActivity.class);
intent.putExtra("url", url);
startActivity(intent);
} catch (NumberFormatException e) {
e.printStackTrace();
}
break;
case mealPath:
try {
String type = uriParse.getQueryParameter("type");
if ("0".equals(type)) {
UIHelper.startVipWebActivity(getActivity());
} else if ("1".equals(type)) {
UIHelper.startDownloadWebActivity(getActivity());
}
} catch (NumberFormatException e) {
e.printStackTrace();
}
break;
default:
Log.e(TAG, "can't find path" + path);
break;
}
}
finish();
}
public class UriParse implements IUriParse {
Activity activity;
public UriParse(Activity activity) {
this.activity = activity;
}
@Override
public Uri parseUri() {
return activity.getIntent().getData();
}
@Override
public Uri parseUri(Intent p1) {
return p1.getData();
}
@Override
public String getPath() {
return activity.getIntent().getData().getPath();
}
@Override
public String getQueryParameter(Uri uri, String key) {
return uri.getQueryParameter(key);
}
@Override
public String getPath(Activity activity) {
return activity.getIntent().getData().getPath();
}
@Override
public String getQueryParameter(String key) {
return activity.getIntent().getData().getQueryParameter(key);
}
@Override
public String getQueryParameter(Activity activity, String key) {
return getQueryParameter(parseUri(activity.getIntent()), key);
}
}
public Activity getActivity() {
return this;
}
}对于熟悉隐式Intent的部分，这部分代码应该不难理解。增加了一个Activity 保持原有代码不变是一个很好的做法。
Uri 实现外部调用
Uri是什么？
通用资源标志符（Universal Resource Identifier, 简称”URI”）。
Uri代表要操作的数据，Android上可用的每种资源 - 图像、视频片段等都可以用Uri来表示。
final String hostUrl = "hifi://com.hifimusic.xiaomi.qing/";
@Override
public void onClick(View v) {
Uri uri;
try {
Intent intent = new Intent();
switch (v.getId()) {
case R.id.startBtn:
uri = Uri.parse(hostUrl + "splash");//启动APP
intent.setData(uri);
startActivity(intent);
break;
case R.id.indexBtn:
uri = Uri.parse(hostUrl + "home?id=1");
intent.setData(uri);
startActivity(intent);
break;
浏览器如何调用？
<a href="hifi://com.hifimusic.xiaomi.qing/album?id=1372004452289">打开专辑a>
Demo 代码
关于Intent 与 Intent Filters 的使用还是很简单的