从另一个活动通过故意关闭活动 [英] Close activity from another activity through an intent

问题描述

我想从第一个打开的活动，我想缩小与意图的第一个。我想这一点，但接收器无法正常工作。而我在我的应用程序不同的接收器，所以我想，这个意图是从FirstReceiver只收到。我怎样才能做到这一点？

 公共类首先扩展活动
{
    @覆盖
    保护无效的onCreate（包savedInstanceState）
    {
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.activity_first）;
        意图接近=新的意图（getApplicationContext（），Close.class）;
        startActivity（关闭）;
    }

    @覆盖
    公共布尔onCreateOptionsMenu（菜单菜单）
    {
        //充气菜单;这增加了项目操作栏，如果它是present。
        。getMenuInflater（）膨胀（R.menu.first，菜单）;
        返回true;
    }

    类FirstReceiver扩展的BroadcastReceiver
    {
        @覆盖
        公共无效的onReceive（上下文的背景下，意图意图）
        {
            Log.e（FirstReceiver，FirstReceiver）;
            First.this.finish（）;
        }
    }
}
 

这是第二类。

 公共类关闭扩展活动
{
    @覆盖
    保护无效的onCreate（包savedInstanceState）
    {
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.activity_close）;
        意图myIntent =新意图（）;
        sendBroadcast（myIntent）;
        Log.e（的onCreate，的onCreate）;
        完（）;
    }

    @覆盖
    公共布尔onCreateOptionsMenu（菜单菜单）
    {
        //充气菜单;这增加了项目操作栏，如果它是present。
        。getMenuInflater（）膨胀（R.menu.close，菜单）;
        返回true;
    }
}
 

解决方案

这可以帮助你......

 公共类首先扩展活动{
    公共静态最后弦乐ACTION_CLOSE =yourPackageName.ACTION_CLOSE;
    私人FirstReceiver firstReceiver;

    @覆盖
    保护无效的onCreate（包savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.activity_first）;
        IntentFilter的过滤器=新的IntentFilter（ACTION_CLOSE）;
        firstReceiver =新FirstReceiver（）;
        registerReceiver（firstReceiver，过滤器）;
        意图接近=新的意图（getApplicationContext（），Close.class）;
        startActivity（关闭）;
    }

    @覆盖
    公共布尔onCreateOptionsMenu（功能菜单）{
        //充气菜单;这增加了项目操作栏，如果它是present。
        。getMenuInflater（）膨胀（R.menu.first，菜单）;
        返回true;
    }

    @覆盖
    保护无效的onDestroy（）{
        super.onDestroy（）;
        unregisterReceiver（firstReceiver）;
    }

    类FirstReceiver扩展的BroadcastReceiver {
        @覆盖
        公共无效的onReceive（上下文的背景下，意图意图）{
            Log.e（FirstReceiver，FirstReceiver）;
            如果（intent.getAction（）。等于（ACTION_CLOSE））{
                First.this.finish（）;
            }
        }
    }
}

公共类关闭延伸活动{
    @覆盖
    保护无效的onCreate（包savedInstanceState）{
        super.onCreate（savedInstanceState）;
        的setContentView（R.layout.activity_close）;
        意图myIntent =新的意图（First.ACTION_CLOSE）;
        sendBroadcast（myIntent）;
        Log.e（的onCreate，的onCreate）;
        完（）;
    }

    @覆盖
    公共布尔onCreateOptionsMenu（功能菜单）{
        //充气菜单;这增加了项目操作栏，如果它是present。
        。getMenuInflater（）膨胀（R.menu.close，菜单）;
        返回true;
    }
}
 

I want to open an activity from the first one, and i want to close the first one with an intent. I tried this, but the receiver doesn't work. And i have different receivers in my application, so i want that this intent is received only from FirstReceiver. How can i do it?

public class First extends Activity 
{
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);
        Intent close = new Intent(getApplicationContext(), Close.class);
        startActivity(close);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) 
    {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.first, menu);
        return true;
    }

    class FirstReceiver extends BroadcastReceiver 
    {
        @Override
        public void onReceive(Context context, Intent intent) 
        {
            Log.e("FirstReceiver","FirstReceiver");
            First.this.finish();
        }
    }
}

And this is the second class.

public class Close extends Activity 
{
    @Override
    protected void onCreate(Bundle savedInstanceState) 
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_close);
        Intent myIntent = new Intent();
        sendBroadcast(myIntent);
        Log.e("onCreate","onCreate");
        finish();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) 
    {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.close, menu);
        return true;
    }
}

解决方案

this may help you...

public class First extends Activity {
    public static final String ACTION_CLOSE = "yourPackageName.ACTION_CLOSE";
    private FirstReceiver firstReceiver;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_first);
        IntentFilter filter = new IntentFilter(ACTION_CLOSE);
        firstReceiver = new FirstReceiver();
        registerReceiver(firstReceiver, filter);
        Intent close = new Intent(getApplicationContext(), Close.class);
        startActivity(close);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.first, menu);
        return true;
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        unregisterReceiver(firstReceiver);
    }

    class FirstReceiver extends BroadcastReceiver {
        @Override
        public void onReceive(Context context, Intent intent) {
            Log.e("FirstReceiver", "FirstReceiver");
            if (intent.getAction().equals(ACTION_CLOSE)) {
                First.this.finish();
            }
        }
    }
}

public class Close extends Activity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_close);
        Intent myIntent = new Intent(First.ACTION_CLOSE);
        sendBroadcast(myIntent);
        Log.e("onCreate", "onCreate");
        finish();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.close, menu);
        return true;
    }
}

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