Android通过代码批量生成字符图标用于给输入法显示状态栏的图标

关键Java代码

import android.app.Activity; import android.graphics.Bitmap; import android.os.Bundle; import android.util.Log; import android.view.View; import android.widget.TextView; import java.io.File; import java.io.FileOutputStream; import java.io.IOException; import java.util.ArrayList; import java.util.Arrays; import java.util.Locale; import android.widget.LinearLayout; import android.text.TextUtils; public class IconGeneratorActivity extends Activity { private static final String TAG = "IconGeneratorActivity"; private LinearLayout parentLayout; @Override public void onCreate(Bundle savedInstance) { super.onCreate(savedInstance); setContentView(R.layout.activity_icon); parentLayout = findViewById(R.id.parentLayout); String[] localeNames = getAssets().getLocales(); Arrays.sort(localeNames); ArrayList<Locale> locales = new ArrayList<Locale>(); for (String ln : localeNames) { int u = ln.indexOf('-'); if (u >= 0) { Log.e(TAG, "locale = " + ln); locales.add(new Locale(ln.substring(0, u), ln.substring(u+1))); } } final String[] modes = new String[] {"abc", "Abc", "ABC"}; for (final String localeName : localeNames) { if (!TextUtils.isEmpty(localeName)) { for (final String mode : modes) { String textLocale = localeName; if (modes[0].equals(mode)) { } else if (modes[1].equals(mode)) { textLocale = textLocale.substring(0,1).toUpperCase() + textLocale.substring(1); } else if (modes[2].equals(mode)) { textLocale = textLocale.toUpperCase(); } final TextView tv_locale = new TextView(this); parentLayout.addView(tv_locale, -2, -2); tv_locale.setText(textLocale); tv_locale.setDrawingCacheEnabled(true); tv_locale.setDrawingCacheQuality(View.DRAWING_CACHE_QUALITY_HIGH); tv_locale.setPadding(0, 0, 0, 0); tv_locale.setTextColor(android.graphics.Color.parseColor("#ffffff")); tv_locale.setTextSize(20); tv_locale.setIncludeFontPadding(false); tv_locale.postDelayed(new Runnable(){ public void run() { if (tv_locale != null && tv_locale.getDrawingCache() != null) { int modeNum = 0; if (modes[0].equals(mode)) { modeNum = 0; } else if (modes[1].equals(mode)) { modeNum = 1; } else if (modes[2].equals(mode)) { modeNum = 2; } saveBitmap(tv_locale.getDrawingCache().copy(Bitmap.Config.ARGB_8888, false), "ic_locale_"+localeName.replaceAll("-","_").toLowerCase()+"_" + modeNum + ".png"); } } }, 300); } } } } private void saveBitmap(Bitmap b, String filename) { try { File pngFolder = new File("/sdcard/pngs/"); if (!pngFolder.exists()) { pngFolder.mkdirs(); } FileOutputStream fos = new FileOutputStream(new File("/sdcard/pngs/" + filename)); b.compress(Bitmap.CompressFormat.PNG, 100, fos); fos.close(); } catch (IOException e) { Log.i(TAG, "failed to write PNG", e); } } } 

给 TextView 加边框

<?xml version="1.0" encoding="UTF-8"?> <shape xmlns:android="http://schemas.android.com/apk/res/android"> <solid android:color="#00000000"/> <stroke android:width="2dip" android:color="#ff000000" /> </shape> 

运行了之后把 /sdcard/pngs/ 下的图片全都pull出来就可以使用了，此方法可以自己生成一些简单的图片，不再需要找UI做图

本文地址：https://blog.csdn.net/zhangqi6627/article/details/107708910