小编sta*_*kex的帖子

我想将zxing扫描仪集成到我的应用程序中而无需外部应用程序(来自Play商店的zxing扫描仪).这是我的代码

Button scan = (Button) findViewById(R.id.scan_button);
scan.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {
        Intent intent = new Intent("com.google.zxing.client.android.SCAN");
        intent.setPackage("com.mypackage.app");
        intent.putExtra("SCAN_MODE", "QR_CODE_MODE");
        startActivityForResult(intent, SCANNER_REQUEST_CODE);
    }
});

@Override
public void onActivityResult(int requestCode, int resultCode, Intent intent) {
    if (requestCode == SCANNER_REQUEST_CODE) {
        // Handle scan intent
        if (resultCode == Activity.RESULT_OK) {
            // Handle successful scan
            String contents = intent.getStringExtra("SCAN_RESULT");
            String formatName = intent.getStringExtra("SCAN_RESULT_FORMAT");
            byte[] rawBytes = intent.getByteArrayExtra("SCAN_RESULT_BYTES");
            int intentOrientation = intent.getIntExtra("SCAN_RESULT_ORIENTATION", Integer.MIN_VALUE);
            Integer orientation = (intentOrientation == Integer.MIN_VALUE) ? null …

我想使用Android Studio登录活动创建应用.它说属性imeActionId中的@ + id/login不是有效整数.发生了什么？我没有改变任何东西.默认情况下,它是'android:imeActionId ="@ + id/login"'. http://i.stack.imgur.com/ow5b8.png

我的源代码.

AndroidManifest.xml中

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

    <!-- To auto-complete the email text field in the login form with the user's emails -->
    <uses-permission android:name="android.permission.GET_ACCOUNTS" />
    <uses-permission android:name="android.permission.READ_PROFILE" />
    <uses-permission android:name="android.permission.READ_CONTACTS" />

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:theme="@style/AppTheme" >
        <activity
            android:name=".LoginActivity"
            android:label="@string/app_name"
            android:windowSoftInputMode="adjustResize|stateVisible" >
        </activity>
    </application>

</manifest>

LoginActivity

package android.com.login;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.LoaderManager.LoaderCallbacks;
import android.content.ContentResolver;
import android.content.CursorLoader;
import android.content.Loader;
import android.database.Cursor;
import android.net.Uri;
import …

结果如下:http://i.stack.imgur.com/VgbZT.png.我希望它位于状态栏和全宽下方,就像这个:http://i.stack.imgur.com/FFQJN.png.

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:paddingBottom="@dimen/activity_vertical_margin"
    tools:context=".MyActivity">

    <!--<android.support.v7.widget.Toolbar-->
        <!--android:id="@+id/toolbar"-->
        <!--android:layout_height="wrap_content"-->
        <!--android:layout_width="match_parent"-->
        <!--android:minHeight="?attr/actionBarSize"-->
        <!--android:background="?attr/colorPrimary" />-->

    <android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:contentInsetEnd="0dp"
        app:contentInsetStart="0dp"
        android:minHeight="?attr/actionBarSize"
        android:background="?attr/colorPrimary" >
    </android.support.v7.widget.Toolbar>

</RelativeLayout>

public class MyActivity extends ActionBarActivity {

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

        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
    }

我已经读过这个,但它仍然没有用.