我试图做一个简单的事情,从我的应用程序打开网页.我认为代码应该看起来像下面的东西,但是我执行代码时会发现错误“找不到任何活动”：
public class MainActivity extends Activity {
public static final String MY_STRING = "com..example.MY_STRING";
Button button1;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
button1 = (Button) findViewById(R.id.button1);
button1.setOnClickListener(clickListener);
}
public OnClickListener clickListener = new OnClickListener(){
@Override
public void onClick(View arg0) {
Intent launchBrowser = new Intent(Intent.ACTION_VIEW,Uri.parse("www.example.com"));
startActivity(launchBrowser);
}
};
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main,menu);
return true;
}
}
这里是日志：
D/libEGL(11574): loaded /system/lib/egl/libGLES_android.so
D/libEGL(11574): loaded /vendor/lib/egl/libEGL_mtk.so
D/libEGL(11574): loaded /vendor/lib/egl/libGLESv1_CM_mtk.so
D/libEGL(11574): loaded /vendor/lib/egl/libGLESv2_mtk.so
D/OpenGLRenderer(11574): Enabling debug mode 0
V/Provider/Setting(11574): invalidate [system]: current 109 != cached 0
D/AndroidRuntime(11574): Shutting down VM
W/dalvikvm(11574): threadid=1: thread exiting with uncaught exception (group=0x40ca8258)
E/AndroidRuntime(11574): FATAL EXCEPTION: main
E/AndroidRuntime(11574): android.content.ActivityNotFoundException: No Activity found to handle Intent { act=android.intent.action.VIEW dat=www.example.com }
E/AndroidRuntime(11574): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1518)
E/AndroidRuntime(11574): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1390)
E/AndroidRuntime(11574): at android.app.Activity.startActivityForResult(Activity.java:3204)
E/AndroidRuntime(11574): at android.app.Activity.startActivity(Activity.java:3311)
E/AndroidRuntime(11574): at com.example.openwebpage.MainActivity$1.onClick(MainActivity.java:40)
E/AndroidRuntime(11574): at android.view.View.performClick(View.java:3517)
E/AndroidRuntime(11574): at android.view.View$PerformClick.run(View.java:14155)
E/AndroidRuntime(11574): at android.os.Handler.handleCallback(Handler.java:605)
E/AndroidRuntime(11574): at android.os.Handler.dispatchMessage(Handler.java:92)
E/AndroidRuntime(11574): at android.os.Looper.loop(Looper.java:137)
E/AndroidRuntime(11574): at android.app.ActivityThread.main(ActivityThread.java:4503)
E/AndroidRuntime(11574): at java.lang.reflect.Method.invokeNative(Native Method)
E/AndroidRuntime(11574): at java.lang.reflect.Method.invoke(Method.java:511)
E/AndroidRuntime(11574): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:809)
E/AndroidRuntime(11574): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:576)
E/AndroidRuntime(11574): at dalvik.system.NativeStart.main(Native Method)
这是我的清单：
06002
解决方法
只是猜测,但你可能会丢失http：//前缀.尝试
Intent launchBrowser = new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.example.com"));
