我无法在列表视图中的项目上点击新的活动.我想要onItemClick可以打开ApkInfoActivity ..其实当我点击没有发生.
protected void onItemClick(ListView l,View v,int position,long id,AdapterView<?> parent) {
super.onListItemClick(l,v,position,id);
final ApplicationInfo app = applist.get(position);
PackageInfo packageInfo = (PackageInfo) parent.getItemAtPosition(position);
AppDataActivity appData = (AppDataActivity) getApplicationContext();
appData.setPackageInfo(packageInfo);
Intent appInfo = new Intent(getApplicationContext(),ApkInfoActivity.class);
startActivity(appInfo);
}
我找不到问题.我如何解决？
使用logcat编辑：
10-29 17:14:07.710: E/AndroidRuntime(3535): FATAL EXCEPTION: main 10-29 17:14:07.710: E/AndroidRuntime(3535): java.lang.ClassCastException: android.content.pm.ApplicationInfo cannot be cast to android.content.pm.PackageInfo 10-29 17:14:07.710: E/AndroidRuntime(3535): at com.dd.application.MainActivity.onItemClick(MainActivity.java:369) 10-29 17:14:07.710: E/AndroidRuntime(3535): at android.widget.AdapterView.performItemClick(AdapterView.java:297) 10-29 17:14:07.710: E/AndroidRuntime(3535): at android.widget.AbsListView.performItemClick(AbsListView.java:1149) 10-29 17:14:07.710: E/AndroidRuntime(3535): at android.widget.AbsListView$PerformClick.run(AbsListView.java:2939) 10-29 17:14:07.710: E/AndroidRuntime(3535): at android.widget.AbsListView$2.run(AbsListView.java:3622) 10-29 17:14:07.710: E/AndroidRuntime(3535): at android.os.Handler.handleCallback(Handler.java:730) 10-29 17:14:07.710: E/AndroidRuntime(3535): at android.os.Handler.dispatchMessage(Handler.java:92) 10-29 17:14:07.710: E/AndroidRuntime(3535): at android.os.Looper.loop(Looper.java:137) 10-29 17:14:07.710: E/AndroidRuntime(3535): at android.app.ActivityThread.main(ActivityThread.java:5323) 10-29 17:14:07.710: E/AndroidRuntime(3535): at java.lang.reflect.Method.invokeNative(Native Method) 10-29 17:14:07.710: E/AndroidRuntime(3535): at java.lang.reflect.Method.invoke(Method.java:525) 10-29 17:14:07.710: E/AndroidRuntime(3535): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:743) 10-29 17:14:07.710: E/AndroidRuntime(3535): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:559) 10-29 17:14:07.710: E/AndroidRuntime(3535): at dalvik.system.NativeStart.main(Native Method)
解决方法
用这个做你的工作
list.setOnItemClickListener(new AdapterView.onItemClickListener() {
@Override
public void onItemClick(AdapterView<?> adapter,View view,long arg) {
Intent appInfo = new Intent(YourActivity.this,ApkInfoActivity.class);
startActivity(appInfo);
}
});
