Question

我试图从application2的主要活动中调用application1的activity2来触摸提交功能的提交按钮，但是我收到了这个错误：

android.content.ActivityNotFoundException：找不到要处理的Activity 意图{act = activity2.application1（有附加内容）}

我在application2之前运行application1，以便application2可以从application1找到activity2。

Application2 MainActivity.java

package com.example.application2;

import com.example.application2.R;


import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.EditText;
import android.widget.Spinner;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
}

@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;
}

@Override
public boolean onOptionsItemSelected(MenuItem item) {
    // Handle action bar item clicks here. The action bar will
    // automatically handle clicks on the Home/Up button, so long
    // as you specify a parent activity in AndroidManifest.xml.
    int id = item.getItemId();
    if (id == R.id.action_settings) {
        return true;
    }
    return super.onOptionsItemSelected(item);
}

public void submit(View v){

    String s = "activity2.application1";
    Intent intent = new Intent(s);
    intent.putExtra("name",      ((EditText)findViewById(R.id.editText1)).getText().toString());
    intent.putExtra("about", ((EditText)findViewById(R.id.editText2)).getText().toString());
    intent.putExtra("age", ((Spinner)findViewById(R.id.spinner1)).getSelectedItem().toString());

    startActivity(intent);
}
}

Application1 activity2.java

package com.example.application1;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;
import android.widget.TextView;

public class activity2 extends Activity{

@Override
protected void onCreate(Bundle savedInstanceState) {
    // TODO Auto-generated method stub
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity2);

    Intent intent = getIntent();
    TextView t1 = (TextView) findViewById(R.id.textView4);
    t1.setText(intent.getStringExtra("name"));

    TextView t2 = (TextView) findViewById(R.id.textView5);
    t2.setText(intent.getStringExtra("age"));

    TextView t3 = (TextView) findViewById(R.id.textView7);
    t3.setText(intent.getStringExtra("about"));
}

}

Application1 AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.application1"
android:versionCode="1"
android:versionName="1.0"

 >

<uses-sdk
    android:minSdkVersion="15"
    android:targetSdkVersion="22" />

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

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>

    <activity android:name=".activity2">

        <intent-filter >

            <action android:name="activity2.application1">

                <category android:name="android.intent.category.DEFAULT"/>


            </action>

        </intent-filter>
    </activity>
</application>

</manifest>

Answer 1

清单文件中缺少活动1。在清单文件中添加活动声明。

清单的内部应用程序标记，您可以添加新的活动，如：

<activity android:name=".newActivity"/>

android.content.ActivityNotFoundException：找不到处理Intent的Activity {act = activity2.application1（has extras）}

1 个答案: