android content activitynotfoundexception no activ

问题:

I am trying to write an app where you can type in an address and then you get redirected to google maps. (I suppose this is called implicit intent)

-I have created an intent to launch the main activity, which is the only activity in my app. The Main activity consists of some text, an editfield and a button.

AndroidManifest.xml:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.where_do_you_live"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="8"
    android:targetSdkVersion="15" />

<application
    android:icon="@drawable/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".MainActivity"
        android:label="@string/title_activity_main" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>
<uses-permission android:name="android.permission.INTERNET" />

</manifest>

this is the code for the button:

public void Button1Click(View view)
{       
    try
    {
        addressField=(EditText)findViewById(R.id.address);

        String address=addressField.getText().toString();
        address=address.replace(' ','+');
        Intent geoIntent=new Intent(android.content.Intent.ACTION_VIEW,
            Uri.parse("geo:0,0?q=" + address));
        startActivity(geoIntent);

    }

    catch(Exception e)
    {
        TextView tv=(TextView)findViewById(R.id.textView1);
        tv.setText(e.toString());
        //finding stuff

    }

}

回答1:

If you are testing this in emulator, things are different than in a device.

When you are creating your Android Virtual Device, you should select Google APIs as your target. If you do not have them installed, you can use SDK Manager to download it.

Have a look at this.