小编Kam*_*med的帖子

有没有办法以编程方式更改应用程序的详细信息(设置 - >应用程序 - > [anApp])？具体来说,我可以取消选中"显示通知"吗？

我假设你有root权限

在此先感谢您的帮助

我试图从我当前的片段添加一个意图到另一个片段.为此我在卡片中的ImageButton上添加了一个OnclickListener.

但它不能正常工作,我在代码中找不到错误.

package com.example.kgb.homescreen.myaccount;

import android.content.Context;
import android.content.Intent;
import android.graphics.Color;
import android.support.v4.app.Fragment;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ImageButton;

import com.example.kgb.R;
import com.example.kgb.components.UpdatedTextView;

import java.util.ArrayList;


public class MyAccountsCardAdapter extends RecyclerView.Adapter<MyAccountsCardAdapter.ViewHolder> {

    private static Context context;

    public MyAccountsCardAdapter(Context context) {
        this.context=context;
    }

    private ArrayList<MyAccountsCard>cardArrayList;
    public MyAccountsCardAdapter(ArrayList<MyAccountsCard> cardData) {
        this.cardArrayList=cardData;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView= LayoutInflater.from(parent.getContext()).inflate(R.layout.accounts_card_layout, parent, false);
        ImageButton imButton = (ImageButton) itemView.findViewById(R.id.shareButton);
        return new ViewHolder(itemView,imButton);
    }

    @Override
    public void onBindViewHolder(MyAccountsCardAdapter.ViewHolder …

我想要一个像materializecss中的固定动作btn这样的工具栏，但我只是希望它成为我不想它从按钮中弹出的工具栏。有谁知道如何做到这一点？？这里有一些代码来解释。

<footer>
  <div class="fixed-action-btn toolbar">
    <a class="btn-floating btn-large red">
      <i class="large material-icons">mode_edit</i>
    </a>
    <ul>
      <li class="waves-effect waves-light"><a href="#!"><i class="material-icons">insert_chart</i></a></li>
      <li class="waves-effect waves-light"><a href="#!"><i class="material-icons">format_quote</i></a></li>
      <li class="waves-effect waves-light"><a href="#!"><i class="material-icons">publish</i></a></li>
      <li class="waves-effect waves-light"><a href="#!"><i class="material-icons">attach_file</i></a></li>
    </ul>
  </div>
</footer>

在我将 getMap() 更改为 getMapAsync() 并实现 OnMapReadyCallback 后，我收到错误 NullPointerException。

这里是 logcat

引起：java.lang.NullPointerException：尝试在 pym.example.com.fypv2.callme.Callme 的空对象引用上调用虚拟方法“void com.google.android.gms.maps.GoogleMap.setMyLocationEnabled(boolean)” .onCreate(Callme.java:117)`

这里的代码

SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
        .findFragmentById(R.id.map);
mapFragment.getMapAsync(this);

// Enabling MyLocation in Google Map
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
    // TODO: Consider calling
    //    ActivityCompat#requestPermissions
    // here to request the missing permissions, and then overriding
    //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
    //                                          int[] grantResults)
    // to handle the case where the user grants the permission. See the documentation …

我的项目中有两个模块:

1. 应用
2. app_list

这两个模块都有java和res.app_list有一些我想要推出的活动app.

在Eclipse中,我将app_list作为依赖库,我能够启动活动app_list.在Android Studio中,当我添加app_list为依赖项时,它说:

"Error:A problem occurred configuring project ':app'.
> Dependency NewMathBuzz:app_list:unspecified on project app resolves to an APK archive which is not supported as a compilation dependency. File: <home>/NewMathBuzz/app_list/build/outputs/apk/app_list-release-unsigned.apk
"

app> build.gradle如下:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 22
    buildToolsVersion "22.0.1"

    defaultConfig {
        applicationId "com.mass.mathbuzz"
        minSdkVersion 7
        targetSdkVersion 22
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies { …

我有一个ListView,我想用视频形式填充URL.我可以从URL轻松地在ListView适配器中显示图片,但是如何加载视频缩略图？