pp277的专栏

computeValuesWithHarfbuzz  -- need to force to single run或者android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views子线程不可以直

1、去掉内边框，在布局文件中删除    android:paddingBottom="@dimen/activity_vertical_margin"    android:paddingLeft="@dimen/activity_horizontal_margin"    android:paddingRight="@dimen/activity_horizontal_margin"

package com.example.wenzi;import java.util.Random;import android.os.Bundle;import android.app.Activity;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bund

package com.example.wenzi;import java.io.BufferedReader;import java.io.InputStreamReader;import android.os.Bundle;import android.app.Activity;public class MainActivity extends Activi

今天在写一个文本阅读器时，出现以下错误：

DetailActivity中：//需要跳转页面的地方 Intent intent1 = new Intent(DetailActivity.this,FontSetActivity.class); //说明有返回值 startActivityForResult(intent1 , 0);//覆写方法onActivityResult，接收FontSetActivity页

String发送端：  intent.putExtras("asd1", asd);  接收端：String asd = this.getIntent().getExtras("asd1");Object发送端：   Intent intent = new Intent(this,BookView.

//在util包中写ExitApplication类import java.util.LinkedList;import java.util.List;import android.app.Activity;import android.app.Application;public class ExitApplication extends Applicatio