android - 如何通过单击外部链接打开特定 ID 的特定活动
问题描述
我在我的应用程序中添加了应用程序链接助手,以从外部链接打开特定活动。现在我的 DataDetailActivity 中有以下代码。
Intent appLinkIntent = getIntent();
String appLinkAction = appLinkIntent.getAction();
Uri appLinkData = appLinkIntent.getData();
if(appLinkData != null)
{
String dataId = appLinkData.getLastPathSegment();
Intent resultIntent = new Intent(this, DataDetailActivity.class);
startActivity(resultIntent);
}
我想打开特定的 DataDetailActivity。但这确实会引发错误。我必须在哪里传递意图中的 dataId ?
注意:我们在具有登录到 FB 按钮的应用程序中有默认主屏幕。那么我是否必须在 HomeScreenActivity 中写下这段代码并将意图传递给 DatadetailAcvity.java?如果是,那么我如何告诉 DataDetailScreen 特定数据(如果我有 id)?
任何帮助,将不胜感激。
解决方案
清单.xml
<application
....
android:label="@string/app_name"
android:theme="@style/AppTheme">
<activity
android:name=".HomeScreenActivity"
android:screenOrientation="portrait"
android:theme="@style/AppTheme">
<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:scheme="somescheme" /> <!--This line to define schema -->
</intent-filter>
</activity>
....
</application>
主屏幕活动
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_home);
checkDeepLink();
}
private void checkDeepLink(){
if (getIntent() != null && getIntent().getData() != null) {
Uri data = getIntent().getData();
String scheme = data.getScheme();
String host = data.getHost();
String param = data.getQuery();
Log.d("DeepLink","Schema : " + scheme);
Log.d("DeepLink","Host : " + host);
Log.d("DeepLink","param : " + host);
if (host.equals("page_details")){
Intent intent = new Intent(this,DatadetailAcvity.class);
intent.putExtra("detail_id",Long.valueOf(data.getQueryParameter("detail_id"))); // URL query values as string, you need to parse string to long.
startActivity(intent);
}else{
// ... other logic
}
}
}
深度链接
scheme://host?pama_name=value&other_param_name=value
例子:
somescheme://page_details?detail_id=2
Facebook 分步指南
更新
数据详情活动
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_data_detail);
if (getIntent() !=null) {
long detailId = getIntent().getLongExtra("detail_id",-1);
if (detailId != -1){
// do your stuff and displayed page by id
}
}
}